Surname meaning for "Coward"

English: occupational name for a keeper of cattle, Middle English
cowherde, Old English cuhyrde, from cu
‘cow’ + hierde ‘herdsman’. (The surname has nothing to do with
the modern English word coward, which is from Old French
cuard, a pejorative term from coue ‘tail’ (Latin
cauda) with reference to an animal with its tail between its
legs.)